feat: prepare EXCEL template base on config (work-packages and partner metadata)

Adapt EXCEL template with [openxlsx::writeData()](https://www.rdocumentation.org/packages/openxlsx/versions/4.1.4/topics/writeData) configs: 

1) Adapt **range_personal** with input from **work-packages

2) Prefill sheet "Summary" with **partner-metadata.csv** (e.g. PIC, short_name=
